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util/disk_cache: use stat() to check if entry is a directory

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d_type is not supported on all systems.

Tested-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97967
This commit is contained in:
Timothy Arceri
2017-02-08 15:05:19 +11:00
parent 463236bd31
commit d7b3707c61
1 changed files with 25 additions and 10 deletions
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35
src/util/disk_cache.c
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@@ -375,7 +375,8 @@ make_cache_file_directory(struct disk_cache *cache, cache_key key)
*/
static char *
choose_random_file_matching(const char *dir_path,
bool (*predicate)(struct dirent *))
bool (*predicate)(struct dirent *,
const char *dir_path))
{
DIR *dir;
struct dirent *entry;
@@ -392,7 +393,7 @@ choose_random_file_matching(const char *dir_path,
entry = readdir(dir);
if (entry == NULL)
break;
if (! predicate(entry))
if (!predicate(entry, dir_path))
continue;
count++;
@@ -412,7 +413,7 @@ choose_random_file_matching(const char *dir_path,
entry = readdir(dir);
if (entry == NULL)
break;
if (! predicate(entry))
if (!predicate(entry, dir_path))
continue;
if (count == victim)
break;
@@ -437,14 +438,20 @@ choose_random_file_matching(const char *dir_path,
* ".tmp"
*/
static bool
is_regular_non_tmp_file(struct dirent *entry)
is_regular_non_tmp_file(struct dirent *entry, const char *path)
{
size_t len;
if (entry->d_type != DT_REG)
char *filename;
if (asprintf(&filename, "%s/%s", path, entry->d_name) == -1)
return false;
len = strlen (entry->d_name);
struct stat sb;
stat(filename, &sb);
free(filename);
if (!S_ISREG(sb.st_mode))
return false;
size_t len = strlen (entry->d_name);
if (len >= 4 && strcmp(&entry->d_name[len-4], ".tmp") == 0)
return false;
@@ -478,9 +485,17 @@ unlink_random_file_from_directory(const char *path)
* special name of "..")
*/
static bool
is_two_character_sub_directory(struct dirent *entry)
is_two_character_sub_directory(struct dirent *entry, const char *path)
{
if (entry->d_type != DT_DIR)
char *subdir;
if (asprintf(&subdir, "%s/%s", path, entry->d_name) == -1)
return false;
struct stat sb;
stat(path, &sb);
free(subdir);
if (!S_ISDIR(sb.st_mode))
return false;
if (strlen(entry->d_name) != 2)